The Mathematical Theory of Behavioural Swarms: Towards Modelling the Collective Dynamics of Living Systems
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915481202458624 |
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| author | Fabregas, Rene Liao, Jie Outada, Nisrine |
| author_facet | Fabregas, Rene Liao, Jie Outada, Nisrine |
| contents | Classical swarm models, exemplified by the Cucker--Smale framework, provide foundational insights into collective alignment but exhibit fundamental limitations in capturing the adaptive, heterogeneous behaviours intrinsic to living systems. This paper formalises the mathematical theory of \textit{Behavioural Swarms}, a comprehensive framework where each particle's state incorporates a dynamic internal variable, the \textit{activity} that co-evolves with position and velocity through nonlocal interactions. We demonstrate how this approach transcends prior models by integrating adaptive decision-making mechanisms and heterogeneous behavioural states into rigorous differential systems. Through applications in behavioural economics and crowd dynamics, we establish the theory's capacity to predict emergent macroscopic patterns from individual behavioural states. Our critical analysis positions this framework against kinetic theories of active particles and agent-based approaches, revealing distinct advantages for modelling systems where individual agency drives collective outcomes. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_12183 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Mathematical Theory of Behavioural Swarms: Towards Modelling the Collective Dynamics of Living Systems Fabregas, Rene Liao, Jie Outada, Nisrine Adaptation and Self-Organizing Systems Analysis of PDEs Dynamical Systems 37N40, 70-10, 91C99, 93A14 Classical swarm models, exemplified by the Cucker--Smale framework, provide foundational insights into collective alignment but exhibit fundamental limitations in capturing the adaptive, heterogeneous behaviours intrinsic to living systems. This paper formalises the mathematical theory of \textit{Behavioural Swarms}, a comprehensive framework where each particle's state incorporates a dynamic internal variable, the \textit{activity} that co-evolves with position and velocity through nonlocal interactions. We demonstrate how this approach transcends prior models by integrating adaptive decision-making mechanisms and heterogeneous behavioural states into rigorous differential systems. Through applications in behavioural economics and crowd dynamics, we establish the theory's capacity to predict emergent macroscopic patterns from individual behavioural states. Our critical analysis positions this framework against kinetic theories of active particles and agent-based approaches, revealing distinct advantages for modelling systems where individual agency drives collective outcomes. |
| title | The Mathematical Theory of Behavioural Swarms: Towards Modelling the Collective Dynamics of Living Systems |
| topic | Adaptation and Self-Organizing Systems Analysis of PDEs Dynamical Systems 37N40, 70-10, 91C99, 93A14 |
| url | https://arxiv.org/abs/2508.12183 |